The underwater granulation system is
generally composed of a start-up valve, a mold head, a granulation
machine head, a water circulation system and pipe fittings, a
dehydration and drying system, a vibration filtration system, and a
control system. Underwater granulation technology belongs to a type of
"die surface hot cutting". When a uniform high-temperature molten
material enters the mold head flow channel from the end of upstream
equipment (reaction kettle, screw extruder, mixing equipment, etc.), the
material is cut into droplets by the high-speed rotating cutter blade
just as it leaves the mold hole and enters the processing water. Due to
the physical characteristics of maximizing the specific surface area of
particles and the temperature difference between the melted droplet
polymer and the processing water, Droplets solidify and form particles
close to the sphere. This granulation method of "hot cutting before
water cooling" determines its ability to handle granulation operations
of materials with poor melting strength, high viscosity, and high
thermal sensitivity.
Applicable raw materials:
Almost all polymers can process particles of different sizes,
suitable for materials such as PE, PP, PS, TR, TPE, TPR, TPV, PET, PVC,
EVA, ABS, calcium masterbatch, calcium masterbatch, carbon black
masterbatch, etc.
Particle mass advantage:
1. Optimize particle shape to ensure smooth and uniform particle surface;
2. High particle density and good fluidity;
3. Eliminate the oxidation of particles;
4. Fewer adhesive phenomena;
5. Production and operational advantages:
1) Fully automatic continuous production; One click startup, convenient and fast.
2) Shorten curing time, reduce footprint and cooling water demand; Energy conservation and environmental protection.
3) Fully enclosed production with clean environment;
4) Low noise and no dust pollution.